Home / 81,765,224.32-122,584,973.10-42,331,204.64

Finding the Fourth Proportional to 81,765,224.32, 122,584,973.10 and 42,331,204.64

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Solution

The fourth proportional to 81,765,224.32, 122,584,973.10 and 42,331,204.64 is: 63,464,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,765,224.32 : 122,584,973.10 = 42,331,204.64 : x
  2. Step 2: Convert to fraction form
    81,765,224.32/122,584,973.10 = 42,331,204.64/x
  3. Step 3: Cross multiply
    81,765,224.32x = 122,584,973.10 × 42,331,204.64
  4. Step 4: Simplify right side
    81,765,224.32x = 5,189,169,582,084,995
  5. Step 5: Solve for x
    x = 5,189,169,582,084,995/81,765,224.32
  6. Step 6: Final answer
    x = 63,464,261.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.